JPH0353613Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a seedling stand that is located protruding from the back side of the stand toward the seedling placement surface, and is used to take out the seedlings from the soil part of the bed of the placed seedlings. Seedling vertical feeding device that provides vertical feeding force to the mouth side,
Further, a seedling presser rod is provided that can be switched between a presser action position in which the placed seedlings are pressed against the seedling placement surface side of the seedling table and a presser release position in which the seedlings are floated, and the seedling presser rod is connected to the seedling vertical feeder and the seedling presser rod. During this period, when the vertical seedling feeder is in the feeding stop state, the seedling presser rod is switched to the pressing position, and when the vertical seedling feeder is in the seedling feeding state, the seedling presser lever is switched to the presser release position. This invention relates to a seedling planting device for a rice transplanter equipped with a mechanism.

[Conventional technology]

The above-mentioned seedling planting device prevents the placed seedlings from slipping to the side of the seedling take-out port during horizontal feeding by a stopper action by the pressure of the seedling presser rod, and by a vertical seedling feeder that enters the soil of the seedling bed due to the pressure by the seedling presser rod. In order to prevent this from locking, when the seedling platform reaches near the end of its stroke, the vertical seedling feeder is moved while floating the seedling presser rod to the presser release position so as not to cause vertical feed resistance. In order to reliably feed the seedlings vertically, we also change the posture of the seedling holding rod.
Consideration has been taken to ensure that this operation can be carried out reliably and easily by effectively utilizing the operation of the vertical seedling feeder system, which is an essential operation at this time.

As such a conventional seedling planting device, one is known in which the seedling presser rod can be forcibly switched to the presser release position by operating it while gripping the rod (for example, Publication No. 22285).

[Problem that the invention attempts to solve]

In the case of this conventional device, when replenishing the seedling rack with seedlings, it is necessary to move from the control part to the front of the seedling rack one by one and switch the seedling presser rod that is in the presser action position to the presser release position. Preparation work for supplying seedlings is time consuming.

The purpose of the present invention is to enable preparation work for seedling supply to be performed quickly and easily.

[Means for solving problems]

The characteristic configuration of the present invention taken to achieve this object is that an operating tool capable of forcibly switching the seedling holding rod to the holding release position is provided at a position where it can be operated from the control section, and its operation is・The effects are as follows.

[Effect]

During seedling planting work, the seedling presser rod is automatically switched between the press release position and the presser action position in conjunction with the seedling feeding and feeding stops of the vertical seedling feeder. By simply operating the tool, the seedling holding rod can be forcibly switched to the holding release position.

[Effect of idea]

Therefore, when replenishing seedlings, there is no need to move to the front of the seedling stand one by one, and you can quickly and easily do it while staying in the control section.
Now I can do it easily.

〔Example〕

EMBODIMENT OF THE INVENTION Hereinafter, an embodiment of the present invention will be described about a seedling planting device of a six-row riding rice transplanter shown in FIGS. 1 to 6.

1 is a link mechanism 2 for lifting and lowering the passenger aircraft A.
This is a planting transmission case that is connected to the planting transmission case 1 so as to be able to move up and down via a drive. A link mechanism 4 is provided for forcing the attached claw 3 to perform a forced circulation movement.

Reference numeral 6 denotes a seedling resting stand that is tilted to the ground and capable of horizontally placing six pine-shaped seedlings in parallel and can be moved back and forth in the left and right direction. A rail 7 that slides and guides the lower end of the pine-shaped seedling group has seedling take-out ports 8 formed at a predetermined interval in the left-right direction.

The means for driving and reciprocating the seedling stand 6 in the lateral direction is constructed as follows.

That is, the left and right connecting arms 10 of the seedling stand 6 are connected to both ends of the transverse feed shaft 9 which is slidably and rotatably supported through the planting transmission case 1 so that they can only rotate relative to each other. A piece member 12 that is engaged with the helical structure of a helical shaft 11 supported in the planting transmission case 1 is individually attached to the central portion in the longitudinal direction of the feed shaft 9, thereby controlling the driving rotation of the helical shaft 11. Due to the lateral movement of the top member 12, the seedling stand 6 is driven and reciprocated from side to side via the lateral feed shaft 9 and the connecting arm 10.

13 is positioned so as to protrude from the back side toward the seedling placement surface 6b through an opening 6a formed in a notch at the lower end of the slanted seedling table 6, and is located on the side of the seedling take-out port 8 with respect to the bed soil of the placed pine-shaped seedlings. This is a vertical seedling feeding tool that uses a star wheel to apply vertical feeding force to the seedling table 6.
They are individually attached to a vertical feed shaft 14 that is rotatably supported on the back side.

B is a vertical feed drive mechanism that rotates the seedling vertical feeder 13 by a certain angle in the seedling vertical feed direction when the seedling platform 6 reaches the stroke end, and this vertical feed drive mechanism B is as follows. It is configured.

That is, when the seedling platform 6 reaches the stroke end, a pair of left and right arms individually attached to the screw shaft 11 are attached to both left and right ends of the shaft portion of the horizontal feed shaft 9 located inside the planting transmission case 1. A passive arm 16 that is forced to rotate by a certain angle by contacting one side of the transmission case 15 is individually attached, and an arm 17 is individually attached to the shaft portion of the transverse feed shaft 9 located outside the planting transmission case 1.
and an arm 18 attached to the vertical feed shaft 13 via a one-way rotary clutch such as a ratchet are pivotally connected via a link 19, and the horizontal feed shaft 9 is elastically biased in the return direction. It consists of

Reference numeral 20 denotes a seedling holding rod capable of pressing the placed pine-shaped seedlings against the seedling placing surface 6b side of the seedling placing table 6, and between this seedling holding rod 20 and the seedling placing table 6, there is a seedling holding rod in a holding position. A multiple link mechanism 21 is provided which can levitate and swing a certain seedling holding rod 20 parallel to or almost parallel to the seedling rest 6, using its attachment base end as a fulcrum.

This multiple link mechanism 21 is constructed by having brackets 22, 22 erected on left and right partition frames 6c, 6c of the seedling stand 6, respectively, swinging around the axes of pins 21a, 21b extending in the left and right direction. A pair of freely left and right first links 21c, 21c and a second link 2
1d and 21d, among which the second link 21
d, 21d, the seedling presser rod 20
A plurality of support rods 23 are attached to each seedling rest part of the seedling rest 6, and a third link 21 fixed to the support rod 23 is installed.
The locking pins 21f, 21f of e are inserted into the elongated holes 21 formed at one end side of the first links 21c, 21c.
g, 21g, and elongated holes 22a, 22 formed in the brackets 22, 22 and shaped like an inverted L when viewed from the side.
a, and the first links 21c, 21
Between the other end of c and the brackets 22, 22, and between the second links 21d, 21d and the seedling stand 6 side, the seedling holding rod 20 is placed on the holding action position side,
That is, springs 21h and 21i are interposed to bias the seedling mounting surface 6b of the seedling mounting table 6 toward the seedling mounting surface 6b.

When the free end portions of the second links 21d, 21d are pulled down against the elastic biasing forces of the springs 21h, 21i, the seedling presser rod 20 floats and moves almost parallel to the seedling stand 6, and after that, the locking pins 21f, 21f are connected to the first link 21.
Inverted L-shaped long holes 22a, 22 on the brackets 22, 22a side along the long holes 21g, 21g of c, 21c.
Since the seedling holding rod 20 is moved into the locking portion a, the seedling holding rod 20 is accordingly swung to a retracted position in which the seedling holding rod 20 is largely raised from the seedling resting table 6.

24 sets the seedling presser rod 20 in the holding position when the vertical seedling feeder 13 is in the vertical feed stop state, and moves the seedling presser rod 20 when the seedling vertical feeder 13 is in the seedling vertical feed state. This is a connecting mechanism that switches to the presser release position.

This interlocking mechanism 24 has a rotatable support shaft 24c provided with first and second arms 24a, 24b whose orientations differ by approximately 90 degrees, mounted on a bracket 25 fixed to the back surface of the seedling stand 6. The first arm 24a and the arm 17 of the vertical feed drive mechanism B
are pivotally connected via a third arm 24d, and a pin engageable with a hook 24e pivotally attached to the second link 21d of the multiple link mechanism 21 is provided at the tip of the second arm 24b. 24f is fixed, and then, by pressing down the hook 24f in conjunction with the operation of vertically feeding the seedlings by the vertical seedling feeder 13, the seedling presser rod 20 in the holding position is moved against the elastic biasing force of the spring 21h. It is configured to be operated by switching to the presser release position.

Reference numeral 26 denotes an operating lever (an example of an operating tool) linked to the arm 24e of the interlocking mechanism 24 via a release wire 27, and is used to control the seedling stand 6 which can be operated from the operating section 28 of the passenger aircraft A. An operation box 29 is pivotally attached to the upper part of the back surface, and is provided with an operation guide groove 29a for the operation lever 26 at this location.

Further, the third arm 24d of the interlocking mechanism 24
The engagement hole 24g for the pin 17a fixed to the arm 17 of the vertical feed drive mechanism B is formed into an elongated hole that is slightly larger than the movement distance of the pin 17a during vertical feeding of seedlings.

Then, the operation lever 26 is moved into the operation guide groove 29.
When the operation is performed to position A of a, the pin 17a of the arm 17 is located near the upper end of the engagement hole 24g, and the seedling presser rod 20 is moved to the vertical seedling feeder 13, as shown in FIG.
In conjunction with this, the position is switched between the seedling holding position (see Fig. 3) and the holding release position (see Fig. 4).

When the operation lever 26 is operated to the position B of the operation guide groove 29a, the third arm 24d is pulled via the release wire 27, and the first arm 24a is pulled.
And the second arm 24b swings clockwise around the support shaft 24c. Then, the hook 24e is connected to the springs 24h and 24 by the pin 24f of the second arm 24b.
The seedling holding rod 20 is pulled against the elastic biasing force of i.
is switched to the forced enemy position in the same manner as in FIG. 4.

When the operation lever 26 is operated to the position C of the operation guide groove 29a, the hook 24e is further pulled and the locking pin 21f is inserted into the inverted L-shaped elongated hole 22a of the bracket 22, as shown in FIG. The seedling holding rod 20 is moved to the locking portion and switched to the retracted position.

[Brief explanation of the drawing]

The drawings show an embodiment of the seedling planting device of the rice transplanter according to the present invention, in which Fig. 1 is a rear side view of the riding rice transplanter, Fig. 2 is a plan view, and Figs. 3 to 5 are views of the seedling holding rod. FIG. 6 is an enlarged longitudinal side view of the main part showing the attitude, and FIG. 6 is a longitudinal rear view of the main part. 6...Seedling rest, 6b...Seedling placement surface, 8...Seedling take-out port, 13...Seedling vertical feeder, 20...Seedling presser rod, 24...Interlocking mechanism, 26...Operation tool.

Claims (1)

[Scope of claim for utility model registration] Seedling placement surface 6b from the back side of the seedling placement stand 6
A vertical seedling feeder 13 protrudes from the side and applies vertical feeding force to the soil portion of the seedling to the side of the seedling take-out port 8; A seedling presser rod 20 is provided which can be freely switched between a presser action position of pressing against the surface 6b side and a presser release position of floating, and the seedling vertical feeder 13 and the seedling presser rod 2 are provided.
0, when the vertical seedling feeder 13 is in the feeding stop state, the seedling presser rod 20 is in the holding position, and when the vertical seedling feeder 13 is in the seedling feeding state, the seedling presser rod 20 is in the holding position. A seedling planting device for a rice transplanter is provided with a movement mechanism 24 for switching to a presser release position, and an operating tool 26 capable of forcibly switching the seedling presser rod 20 to a presser release position is operable from a control section. Seedling planting device of a rice transplanter installed at the location. The seedling planting device for a rice transplanter according to claim 1, wherein the operating tool 26 is mounted at an upper end of the rear surface of the seedling stand 6.